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JP2003535321A |
A method for locating the position for a concave mirror alignment device on a RLG block, comprising the following steps: 1) mount a "log" onto a CNC machine, 2) select several points along the length of the log for measurement; 3) measur...
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JP2003307524A |
To provide a navigation device having an acceleration sensor correction means for easily correcting acceleration calculated from an acceleration sensor.Actual acceleration of a vehicle is calculated from a speed sensor 4. An inclination ...
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JP2003287420A |
To provide a ranging sensor whose output can be easily adjusted.The ranging sensor comprises: a case subassembly 10 having a light-emitting element and a light receiving element inside; and a lens case subassembly 30 that has a light-pro...
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JP3447772B2 |
PURPOSE: To calibrate and precisely initialize a navigation device by measuring speeds of north and east directions, an air craft orientation, and variation rate thereof, obtaining a diagonal aviation angle and a lever arm, obtaining the...
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JP3428539B2 |
To provide a calibration device for enhancing the accuracy of measured values obtained by an attitude angle sensor. A satellite position/attitude presumer 2 reads in photographed landform data 4 from an image data memory 3, and then the ...
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JP3398854B2 |
To obtain an adjusting method in which a resonant frequency and a detection output can be adjusted by trimming at least one or more electrodes out of a first electrode as well as a second electrode and a third electrode which are faced. ...
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JP3392418B2 |
A differential odometer includes a left wheel sensor (503) coupled to a left wheel (103), and a right wheel sensor (513) coupled to a right wheel (105). The left wheel sensor (503) provides a left wheel pulse count (505) as the left whee...
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JP2003506702A |
The method involves obtaining high data rate vibration samples and estimating vibration power spectral density. The estimates are combined with previously determined calibration coefficient, for generating real time vibration induced err...
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JP2003043133A |
To improve sensor testing method so as to use a signal for expressing a parameter to be measured at a very short time interval even when inspecting a sensor without interruption or relatively large interruption. The action of disturbance...
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JP2002310660A |
To efficiently inspect a multitude of external force detection sensors 18.A slip ring 3 is provided on a rotating center shaft of a turn tale 2. The turn table 2 is provided with a sensor output switching device 11. A sensor output part ...
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JP2002303533A |
To provide a vehicle navigation system for correcting the drift of temperature-dependent bias by a vehicle heading sensor with a dead-reckoning vehicle positioning system.Especially, a Kalman filter produces a calibration curve of the bi...
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JP3334196B2 |
PURPOSE: To obtain an inexpensive sensitivity measuring equipment for angular speed sensor which can measure sensitivity and response of angular speed sensor. CONSTITUTION: A post 16 is erected on a base 14 and a plate member 20 is fixed...
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JP2002236138A |
To apply a warming-up voltage to many electronic instruments, thereby put them into the inspection waiting state, and apply a reference inspection voltage only to one or more among them, thereby apply surely the reference inspection volt...
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JP3313169B2 |
PURPOSE: To provide a calibration method for a set value of each axis of coordinate system of an inertia reference device of a moving body in which setting of initial values of the coordinate system of the inertia reference device of the...
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JP2002521901A |
The invention relates to the design of radio electronic devices and, more particularly, to antenna-and-feeder facilities to be used in portable (pocket) receiver-indicators of the GPS and GLONASS satellite radio navigation systems (SRNS)...
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JP2002519653A |
Disclosed is a method for calculating relative phase between channels of a multi-sensor tracking device. The relative phases may be used to calibrate the multi-tracking sensor device to perform more accurately. The method involves record...
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JP2002519652A |
A method for calibrating an angle sensor ascertains an output signal for a zero point and measures an associated operating temperature. The output signal and a reference signal stored for the operating temperature are used to form a new ...
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JP2002519684A |
The present invention relates to a device for checking and calibrating high precision inclinometric sensors. It comprises a substantially quadrangular planar base body made of highly rigid material, set to float on mercury placed inside ...
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JP2002139346A |
To provide an on-vehicle running position display device, capable of detecting a break signal used at start of communication when test is made, without having to wait for the end of communication of some other nodes and instantaneously c...
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JP3282547B2 |
To obtain a measuring apparatus in which a drift component and a random component in a detection signal can be removed by a simple processing operation by a method wherein, when an external force is not applied, a subtracted value in whi...
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JP2002090174A |
To cope effectively with the failure time of a high-accuracy gyro by only a low-accuracy gyro.In a calibration part 13, data obtained by a primary gyro device 11 and data obtained by a backup gyro device 12 are extracted at the operation...
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JP2002090175A |
To provide a pulse generator capable of generating properly a pseudo vehicle speed pulse.An operation processing part 13 stores beforehand plural waveform patterns in a ROM provided in itself. The operation processing part 13 specifies s...
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JP2002048594A |
To read the correction serial data of a data correcting EPROM without using a microcomputer.This device comprises an integrated circuit for processing a sensor signal detected by a sensor to take a detection signal and a data correcting ...
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JP2002022483A |
To easily analyze the causes of anomalies in a specimen in a navigation system.A navigation system specimen 5 is mounted to the vibrating base 4a of a vibration testing machine 4, and a predetermined load is exerted on the specimen 5 by ...
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JP3239542B2 |
PURPOSE: To obtain a regulator for a vibration gyro in which a drift of the gyro due to a temperature change can be reduced. CONSTITUTION: A vibration gyro 10 is mounted at a cutting machine 34. The gyro 10 is heated by a halogen lamp 32...
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JP2001319256A |
To remarkably reduce the time and labor for production and integration concerning a separating knife constitutive group while maintaining the required fixture certainty of the separate knife constitutive group and the required rigidity o...
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JP3225519B2 |
A method for calibrating a differential odometer in a vehicle (10) having a pair of wheels (14, 16) and a pair of associated wheel sensors (18, 24) which generate output pulses as their associated wheels rotate. The method includes drivi...
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JP2001518196A |
The navigation device and the corresponding method for position determination utilize dead reckoning. A position is calculated by a processor on the basis of measured values from a distance sensor and a direction sensor. The measured val...
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JP2001227982A |
To provide a calibration method for a sensor system capable of automatically calibrating and inspecting the sensor system without providing a new auxiliary means.This method has a process for detecting characteristic data of an object by...
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JP2001153658A |
To realize a setting angle adjusting device for a gyro sensor for detecting an azimuth capable of automatically adjusting the setting angle of the gyro sensor without confirming the installation angel of a vehicle navigation device body ...
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JP3162187B2 |
PURPOSE: To set initial coordinate values of navigation of an inertia detecting means of a moving body by a method wherein motion of shaking, rotation or the like is given to a moving body from a moving parent body, the motion is detecte...
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JP3157884B2 |
PURPOSE: To improve the accuracy of a level and reduce the manufacturing cost of the level by making the main body of the level having a T- or I-shaped cross section of a thermosetting resin and integrating an air element with the cross ...
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JP3151150B2 |
To inspect the accuracy of a survey equipment easily and highly accurately on a surface plate, by setting the survey equipment between a light generation device and a reflecting mirror of an inspecting apparatus and inspecting the accura...
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JP2001500617A |
PCT No. PCT/DE97/01296 Sec. 371 Date Mar. 16, 1999 Sec. 102(e) Date Mar. 16, 1999 PCT Filed Jun. 21, 1997 PCT Pub. No. WO98/12505 PCT Pub. Date Mar. 26, 1998A location system for a motor vehicle in which the calibration of a displacement...
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JP2000258443A |
To obtain a speedometer for a vehicle capable of displaying a speed or a mileage with high precision, and capable of providing a system for using speed information with the high-precision speed information. This speedometer 42 can connec...
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JP2000213934A |
To correct errors caused by factors such as the temperature applied to a sensor by receiving the raw output signals of first and second inclination converters indicating the pitching and rolling of a shaft related to ground gravitational...
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JP2000121658A |
To provide train position detecting device and method for detecting the train position with high accuracy by using the acceleration output of an acceleration detecting device when wheels slip and skid in train position detection using th...
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JP3018497B2 |
An offset correction apparatus comprising a turning angular velocity sensor (43), a vehicle speed sensor (41) for outputting a pulsed signal every a constant distance traveled by a vehicle, stop determining means for determining a vehicl...
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JP2000055671A |
To erase the electric offset that is the greater part of offset errors in a gyro output signal by subtracting the gyro output obtained by reversing the polarity of a phase modulator from the gyro output before reversion. An optical fiber...
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JP3011592B2 |
A phase modulated light is propagated through an optical fiber sensing loop, from which a propagated light is obtained. The propagated light is converted to an electric signal, from which a fundamental wave component and even number harm...
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JP2991163B2 |
The invention provides a camera calibration apparatus which eliminates the necessity to effect mapping making a distinction among a plurality of characteristic points and can prevent complication in mapping processing even if the number ...
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JPH11287659A |
To permit failure diagnosis without stopping the operation of an optical fiber gyro and to construct the optical fiber gyro at low cost. An optical integrated circuit 2 has a light branching/combining part 2a and a phase modulator 2b, an...
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JPH11166839A |
To easily perform an inspection without removing a measuring instrument to be inspected from a panel by inserting a connecting cable for inspection between signal transmitting side and receiving side through a connector, and engagingly l...
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JPH11160064A |
To realize a performance test whose reliability is high and whose accuracy is high only by providing a simple facility. A testing apparatus is constituted in such a way that a wedge- shaped optical system 13 provided with a face, on the ...
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JPH11118507A |
To avoid unnecessary error correction and magnification of error due to measuring noise or the like by forbidding error correction of an accelerometer and a gyro, concerning a movement pattern of a hull. When a hull moves, the movement p...
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JPH1194564A |
To provide a method and a device for deciding non-reciprocity induced by pressure. This method is provided with a step for supplying the pressure changed along with time to an optical fiber coil 5 for predetermined time, the step for mea...
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JP2874348B2 |
A bias correction apparatus comprising a gyro (43), bias calculation means for reading output data of the gyro (43) after every fixed period (To) after the apparatus is turned on and for calculating a bias value of the gyro (43) on the b...
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JPH1164520A |
To provide a range finder capable of finding precisely origins of coordinates and device delay quantities irrespective of off-axis, by measuring three above-ground targets. Assuming device delay quantities d0 to be d1 , d2 ,..., temporar...
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JPH1151690A |
To sustain the accuracy of inclination angle of a tilting body without requiring a highly accurate control technology or a precise machining technology by applying an external force for turning around a pivot to the inclining body and tr...
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JPH10512049A |
PCT No. PCT/DE95/01796 Sec. 371 Date Jun. 27, 1997 Sec. 102(e) Date Jun. 27, 1997 PCT Filed Dec. 15, 1995 PCT Pub. No. WO96/21138 PCT Pub. Date Jul. 11, 1996A rotation rate sensor is described that operates on the principle of a resonant...
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